This is a really good question. I try to aim for a minimum of 2-3 articles per week. When I'm on a roll, I can get 5 or 6.
I have an extensive backlog of drafts (40+), and try to sit on things until they "feel" ready to publish. If it's a really urgent "Breaking News" piece, I can bang out something high-quality in a matter of hours, but I still have to take the time for research and accuracy beforehand.
Quality is extremely important to me. Very rarely do I ever push out a piece that I feel "meh" about. I know that if I don't feel attached to my piece, the audience definitely won't, either. So, I often take a lot of time getting the details, phrasing, framing, and presentation just right.